HydroBASINS lev08 watershed · #8080273160
Bassin de Little Buffalo River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Fort Smith
Sub-basin area
933,2km²
Upstream area
11 658,6km²
Discharge
12,51m³/s
Mean elev.
187m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nyarling River2036 km²
- Bassin de Little Buffalo River948 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith938.6 km²100.0% of basin
3 intersecting protected areas
Whooping Crane Summer Range
IUCN Not ReportedWetland of International Importance (Ramsar Site)
702.81 km² overlap
National Park
0.11 km² overlap
Wood Buffalo National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
29 distinct species · 58 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Little Buffalo River : 10 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 2 types (connectance 15.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-3,7°C
Annual rain
325mm
Moisture idx (CMI)
-0,37
Runoff
8mm/an
PET
518mm
AET
287mm
Mean slope
1,0°
Water table
13cm
Forest
38%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)